JOnAS is a pure Java implementation of the J2EE specification, available in open source. It is useful to those building applications like e-commerce, e-portal, management systems, intranet application, inventory systems, reservation systems, banking applications, etc.

Zentyal Server aims at offering small and medium businesses (SMBs) a native drop-in replacement for Windows Small Business Server and Microsoft Exchange Server which can be set up in less than 30 minutes and is both easy to use and affordable.

DSSH was written as a direct replacement for the
OpenSSH client. It adds SSH over SSH tunneling
capabilities (for example, to log in to a network
hidden by a firewall), scripting support (using
BeanShell), an advanced agent (which allows storing
of passwords) and "su -" interactive logging for
machines that have disabled direct root login. All
of this was done to enable automated scripting and
logging to many machines based on a few simple
rules.

ClamSAP consists of two C shared libraries that
link between ClamAV and the Virus Scan Interface
(VSI) of SAP (official name: NW-VSI). A SAP
application can use the ClamAV engine to scan for
malicious uploads in HTTP uploads, for example.

The SixPack rapid development library is a collection of classes for rapid development on the .NET/Mono platform. It has been built with medium to large scale sites in mind, and supports high performance requirements (thousands of concurrent users per server.)

Hotwire is an integrated inventory system and a rapid deployment tool targeted at servicing enterprise environments. The currently supported rapid deployment technologies are Kickstart (Red Hat Linux), AutoYaST (SuSE Linux), and Preseed (Debian GNU/Linux). The hotwire server itself can be installed on any Linux platform, however. Additionally, where client machines have the python-dmidecode, func, and certmaster packages installed, hotwire is able to provide an automated inventory maintenance and dynamic updates, via funcwire, a hotwire tool.